Refrigerating apparatus



Nova- W W26:-

P. VUlLLAUME REFRIGERATING APPARATUS Fi'led June 16 1924 2 sheews eet 2 INVE-NTbRQ- wfim W Felenieel New 353 li fi 1 y (T e' r ll r s JESUL VUILLAUME QF MARSEILLE, FRANCE.

REFRIGERATING AIPAEATUS.

Application filed June 18, 1824, Serial No. ZEZGZM, and in France June 3. 192% Thlsinveneion relates, more particularly, to portable refrigerating apparatus of the ebsorpiion type.

Apparatus, heretofore proposed, usually- 5 comprise enerator adopted for convenient heating or its contents, means such as a flier Inometer or other devices for ascertaining the temperatureWithin lbs chamber, a stopperecl kor vulvecontrollcd pipe for introducing liquid reiirigerans lo the genera-cor, u long valve controlled conduit to convey gas to an evaporator and a valve to control the return of gas or fluid to the the generator.

The object of my invention is to provide a refrigerating apparatus which, by reason of its peculiar construction, will possess certain edvenieges as, for inst uce, quicker hearing of the liquid r "rigersnb, a smaller and, consequently, more portable generator clue to the large in'iyernsl ceoeciiy of the gas conduit, elliciency due lo ne particular arrangeme'nt and; cousin parts, and means for in;

safety from danger entailed excessive pressure Within the apparatus.

With the above obg ecis in view, my invention consists in. the construction, arrangemenl; and combination of parts as hereinafter described and forth in due appended. claims.

Reference being; bad lo ihe drawings for a more concise description of my invention:-

Figured, shows, in z frigersting apparel-us c once with my invention;

sl ection, a re d. accord- 52, is vertical section of the valve cssi to o large scale; Fig, 3, is vertical secelon iliusireting nechun section 1.7 igs-sting churnen on she line 11 of the reof an elterneii: ber, the section I (if-o of F151. 5; r

frigeratingcharnber' g. The hollow c l1ndrical' r i. has end closures 2, 3. series of it. 1. connect the closure 2 with the Well of I and serve no convey hot gee, fire, of heat, through the liquid within a her, thereby greatly, increasing lhe li surface ill'iCl expo inning the conversion or the liquid into gas. I aware that such to have been employed in boilers and the like and I therefore do not claini their use-breed of component 7 -ly as my invention, but only in combination tor when the cempereture is such as to cause the weight to fall.

A gas conduit 5, which in such apparatus has heretofore been made of considerable length to provide considerable surface exposed lothe air and thereby to ensure condensation in the inner surface and falling back into the generator of liquid, thus permitting only substantially dry gee to enter the refrigersting chamber, is, in this construction, of considerable diameizcr in order to provide the required large'sur'face for-such condensation, besides providing a large internal capacity thereby enabling a generator of smaller and more portable size to be used and, simultaneously providing a large internal straight and unobstructed passage through which the gas flows freely to the refrigerating chambers. The conduit is however preferably inclined "to enhance the tendency of moisture to col-- lect upon its-inner surface. s

A casino; 6, situated at the upper end of iheconduit 5 has, in ice lower part, a series of openings 13, oiwliich the upper ends constiiui e. for bell valves 13, there being (lily disposed opening. 11. This opening normally closed by e valve 12 opening herein is clamped between a shoulder 3% and a, ferrule 39 sereswihreaded onto the upper pert of en's valve. A cngo ew is se-' cured to ihe upper end of theorising 6 and is reieineci in place by a collar all which has external screwrhreads to engage correspond;

per pert of the casing 6 and the cap 40.

e ing internal rhreedsrespecr-ively in the g I I under surface of the collar i1 is dished, seer permit the diaphragm 15 to flex when inuisr groove to receive a flange l4,

lve l2 raised or lowered. A recess,

collar 41 constitutes, fwlllll the capneoe ies of a tubular stem 45 to which is secured, by screW-thheads or the like a. knob 16 (Fig. The stem 45 has threads 46 to engage thneads 47 on the ferrule'39 so that when the knob 16 is turned the engaging threads will miss or lower the valve 12 from or onto its sect.

Means for inserting liquid into the gen erator comprise a tubular nipple 33, screwed tightly into the ferrule 39 and having tightly screwed or otherwise secured thereon e on which may constitute agland or knob 36, t rough which passes e stem having a bore 31 terminating in an off-set opening 32. The lower end of the stem 30 is tapered to normally close it perforation 48 in the lower end of the nipple 33. By means of the knob 36 the nipple 33 can be prevented from turning whilst the stem 30 is turned to raise or lower it. This perforation 4&8 coincides with a passage 49 in the valve 12, the opening 11,

' and a pipe 7 extending downwardly into end near to the bottom of the generator.

In Fig; 3 e simplified construction is shown, whereby the valve 12, diaphragm. 15, collar 41, tubular stem 45, knob 16 and cap 40. are dispensed with, the last being substituted by e plug into which the nipple 33 is received; its shape being slight y modilied and its lower extremity furnished with a ring 51 to prevent displacement of the balls 13 from the space 14 when, as hereinafter described, the apparatus is inclined.

A tube'IiB 'connects the interior 14- of the casing 6 with the interior of the refrigerating chamber 8. Thechamber has a centrally disposed opening 17 to receive a container 24; for substances or liquids to be cooled or frozen. It will be understood. however, that a suitably formed refrigerating chamber may be inserted into a vessel containing; the substance or liquid to be cooled or frozen.

An alternative construction of the refrigp crating chamber (Fig. 4) comprises an en larged upper part 25 from the bottom 27 of which depend three receptacles 28 each having an outer wall 26 to constitute an intervening space for gas. The pipe 18 may enter the opening 29. The refrip'esating 1 chambers 'are immersed in a tank 23 contit) the water within the tank 23. contains a valve 20 adapteivhy means of a taining'water.

A tube 19, projecting from the conduit 5 has attached to it, by screw-threads, a casing 19 of which the other end is attached to a pipe 22 heving its lower end immersed in The casing be injected through the bore 31 and passages in the adi'acent parts to and through the pipe 7 until the level on the liquid is approximstely that indicated by the letter N. The valve stem is then reedjnsted upon its seat. Inasmuch as the liquid, is capable of continuous use refilling vviil not be of frequent oc currence rind therefore to attain neetness the hi plegii end the velvestem 30 t ey be cut od at the level indicated by the line H in Fig. 53 the knob or gland 2S6 heine else removed; The hnoh 1% may then he suhstitnted lav another l-rnoh (Fig. 1) not having enonening to permit the extension through it oi the irncli or glend'iii shown in Fig.- the parts th n taking the form shown in Fig. l.

Gas then flows pastiche veives 13 to the re tirigerating chamber 8 trons whence it can 'not return. past the valves end iney he retained in the chamber 8 so long asccn venient or until required. When the liquid reaches as low level as, for instance. that in dicated by the ietter N the temperature will be such that the stem which suppoits the weight 10 will fuse-end, the weight fielh ing, the flame constituting the source of heat will be extinguished. in the event of the pressure rising too high, 'gges will escape pest the valve 20 to the Water in the receptacle 23 and possible fracture of the apparatus is prevented.

The valve 12 being raised by turning of the knob 16,- gas "will'return and coinniingle with the fluid in the generator and the r duced temperature in the chamber 8 will be communicated to the contents of the receptacle 24. When the device shown in Fig. 3 is used the gas will return unimpeded to the pipe 7 and generator and freezing will con tinue so long as the supply of gas lests. Any fluid in the chamber 8 can be poured back into the generetor by reising the chemelimileriy, the superfluous parts 50., 36, end upper pert of the nipple 33 err-in. be

ill-ii her 8. the operation being facilitated by the inclination of the pipe 18.

What 1 claim 13: 1. In a, refrigerating apparatns ccunprihing: a generator in which a liquid refrigerant can be converted into geseous refrigerant by the application of heat, an upwardly extending gas conduit of straight tubular forms tion, and a closed ce sing surmounting the gas conduit, or which the bottom separates the casing end coudui't a series of z nnularly disposed openings in seid bottom, valves non. mallv closing said openings. e ce'ntrallv disposed opening in the bottom of the casing. pipe connecting'said opening; with the in terior of the generetorancl extending therein to a point which is nearly at the bottom thereof, and a pipe connecting vsaidehised casing w th an evaporator.

2. ln s refrigerating apparatus comprismg a generator in which a. liquid refrigerant.

can be converted into gaseous rorfrigerant b the applicationfof heat, an upwardly eiften ingg'as cdiiduit of'stra ght' tubular formation, and a closed ieasing'surrnoi'inting the. gas conduit, of which. the bottom separates the casing and conduit, a-series of annularly disposed openings in said bottom, valves normally closing said openings, a centrally dis- "posed opening inthebottorn of the-casing, a

pipe'connect'ing'said opening with the interior of the generator and extending therein -to a point which is nearly at the bottom.

thereof, a valve having a centrally disposed a erture surmountin and normally closing t e aforesaid eentrally disposed opening, a flexible diaphragm situated above said valve, andfmeans for raising and lowering said valve, and an inclined pipe connecting said closed casing with an evaporator.

. 3. In a refrigerating apparatus comprising a generator in which a liquid refrigerant Ill! can be converted into gaseous refrigerant by the application'oiheat, an upwardly extending gas condniti of straight tubular formatior and 'a closed casing surmounting the gas conduityofgwhich the bottom separates the casing and conduit, a series of annularly disposed-openings insaid bottom, valves normallylcioeing sald openings, a centrally disposed opening in the bottom of the casing, a

.pipeconnectmg said opening with the int'aining said rotatable tubular stem in place I said means comprising :1 ca having a central opening, a ringwithin t e cap, said ring extending into the upper part of the aforesaid casing, and being exteriorly screwthreaded to engage threads respectively on the inner surfaces of the cap and easing, an annular'recess form-ed by SQ-1d ring and cap,

ingvhich groove an annular flange on the aforesaid rotatablLtllbular stem is rotatably retained and an inclined pipe connecting the aforesaid closed casing with an evaporator.

4. In a refrigerating apparatus comp ising a generator in which a liquid refrigerant can be converted into gaseous refrigerant by the application of heat, an upwardly extending gas conduit of straight tubular for mation, and, a closed casing; su'rmounting the gas conduit, of which the bottom sepiarates the casing and conduit-,a series .nul'arly disposed openings said battens,

valves normally closing said openings, a

Benn-ally disposed opening in the bottom of the, casing, a pipe connecting said openin with the interior of the generator and extending therein to a point which is nearly at the bottom thereof, a valve having a centrally disposed aperture, surmountin and normally closing the aforesaid central y disposed" opening, a flexible diaphragm situated above said valve, means for raising and lowering' .said valve, said means consisting of a ferrule attached to said valve, a rotatable tubular stem encompassing said ferrule, a knob on said stem, interengaging screw-threads on said ferrule and tubularstem respectively, means for permitting in-,

jection of fluid into the evaporating chamber, said means comprising a nipple screw.- threaded into the aforesaid ferrule, a centrally bored stern screwrthre'aded into the aforesaid nipple and normallyv closing an opening in the end thereof said openingbeing aligned with a centrally disposed opening in the aforesaid valve, a centrally disposed opening in the bottom of the casing and a. tube extending into the generator, the I aforesaid nipple, centrally bored stem and knob on said nipple'being adapted for sever- I ance and partial removal for the purpose described, and an inclined pipe connecting the aforesaid closed casing with an evaporator.

In a refrigerating apparatus comprising a generator in which a liquid refrigejl out can be converted into gaseous refrigerant by the application of, heat, an up-- 'wardly extending gas conduit of straight tubular formation, and a closed casing surinounting the gas conduit, of WlllCll the bottom separates the casing and conduit, a-

series of annularly disposed openings in said bottom valves normally closing said open-j lugs, a centrally disposed opening in the bot tom of the casing, a. pipe connecting said opening with the interior of the generator and extending'therein to a ,point which is nearly at the bottom thereof, a pipe connecting said closed casing withan evaporatonapipe projecting from said gas conduit with a valve-casing, said casing containing a spring-pressed valve and a second pipe connecting said valve casing with water in areceptacle surrounding the evaporator.

6. A refrigerating, apparatus comprising a generator in which'a'refrigerant can be converted into a gaseous refrigerant by the application of heat, an upwardly extending gas conduit of straight tubular formation, a closed casing surmounting the gas conduit of which the bottom separates the easing and conduit, a series of annularly disposed openings in said bottom, valvesnon molly closing said openings, a centrally dis-,

posed opening in'said bottom ofthe easing,

connecting said opening with the inice fex'ior of the generamr anfi extending therein w a point which 15 nearly at the bottom thereof, a, pipe connecting said 'ing with an evaporator, wpi e 5 from said gas candiuit and fitte casing projecting wlth a valve containing a sprmg-prefise valve,

' and a second pipa ccmnect'mg saw valve casclosed cas-.

connecting the bottom (if the generator with the wall thereof, and a thermostat-in said generator.

PAUL VUILLAUME. 

